Personal Bluetooth conference speaker Rich, clear sound with 360° audio Easy to connect thanks to Bluetooth and USB options Simple, intuitive control at the touch of a button Smooth communication thanks to user-defined settings Top-rate sound anywhere Professional and wireless sound quality with Poly Calisto 5300. This personal, portable Bluetooth conference speaker always provides great sound of the transmitted voice, whether you are working at home, on the road or in the office. It is not just calls, but everything you hear that sounds impressive: videos, podcasts and music. Conferences wherever you may be Now you can enjoy professional sound quality while working on the road or in your home office. The 360° microphone helps you to hear clearly and ensures that participants listening to you at the other end of the call can also hear you. No cables Today, calls are made on many different devices: PCs, tablets and mobile phones. Thanks to Bluetooth connectivity, the Calisto 5300 personal conference speaker lets you quickly and reliably connect to any device.